My suggestion is take your time and follow the guide to a tee. By "the bootmii trick or the twilight one" I'm assuming you mean Hackmii or the ancient Twilight Hack. If you're on 4.1 Hackmii will run through Bannerbomb which is what I believe the guide has you do.

I have finished softmodding the wii already, i am partitioning the hdd and getting ready for some games, i would like to know... what now? i did the guide and didn't get any kind of undesirable situations, so, i need to know, which steps i can skip in this guide: